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be58c38264
Managing listeners state is difficult because they have their own state and can at the same time have theirs dictated by their proxy. The pause is not done properly, as the proxy code is fiddling with sockets. By introducing new functions such as pause_listener()/resume_listener(), we make it a bit more obvious how/when they're supposed to be used. The listen_proxies() function was also renamed to resume_proxies() since it's only used for pause/resume. This patch is the first in a series aiming at getting rid of the maintain_proxies mess. In the end, proxies should not call enable_listener()/disable_listener() anymore.
120 lines
3.9 KiB
C
120 lines
3.9 KiB
C
/*
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* include/proto/proxy.h
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* This file defines function prototypes for proxy management.
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*
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* Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _PROTO_PROXY_H
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#define _PROTO_PROXY_H
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#include <common/config.h>
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#include <common/ticks.h>
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#include <common/time.h>
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#include <types/proxy.h>
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#include <proto/freq_ctr.h>
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int start_proxies(int verbose);
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void maintain_proxies(int *next);
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void soft_stop(void);
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void pause_proxy(struct proxy *p);
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void stop_proxy(struct proxy *p);
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void pause_proxies(void);
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void resume_proxies(void);
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int session_set_backend(struct session *s, struct proxy *be);
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const char *proxy_cap_str(int cap);
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const char *proxy_mode_str(int mode);
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struct proxy *findproxy_mode(const char *name, int mode, int cap);
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struct proxy *findproxy(const char *name, int cap);
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struct server *findserver(const struct proxy *px, const char *name);
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int proxy_cfg_ensure_no_http(struct proxy *curproxy);
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int get_backend_server(const char *bk_name, const char *sv_name,
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struct proxy **bk, struct server **sv);
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/*
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* This function returns a string containing the type of the proxy in a format
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* suitable for error messages, from its capabilities.
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*/
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static inline const char *proxy_type_str(struct proxy *proxy)
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{
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return proxy_cap_str(proxy->cap);
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}
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/* this function initializes all timeouts for proxy p */
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static inline void proxy_reset_timeouts(struct proxy *proxy)
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{
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proxy->timeout.client = TICK_ETERNITY;
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proxy->timeout.tarpit = TICK_ETERNITY;
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proxy->timeout.queue = TICK_ETERNITY;
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proxy->timeout.connect = TICK_ETERNITY;
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proxy->timeout.server = TICK_ETERNITY;
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proxy->timeout.appsession = TICK_ETERNITY;
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proxy->timeout.httpreq = TICK_ETERNITY;
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proxy->timeout.check = TICK_ETERNITY;
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}
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/* increase the number of cumulated connections received on the designated frontend */
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static void inline proxy_inc_fe_conn_ctr(struct listener *l, struct proxy *fe)
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{
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fe->fe_counters.cum_conn++;
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if (l->counters)
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l->counters->cum_conn++;
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update_freq_ctr(&fe->fe_conn_per_sec, 1);
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if (fe->fe_conn_per_sec.curr_ctr > fe->fe_counters.cps_max)
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fe->fe_counters.cps_max = fe->fe_conn_per_sec.curr_ctr;
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}
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/* increase the number of cumulated connections accepted by the designated frontend */
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static void inline proxy_inc_fe_sess_ctr(struct listener *l, struct proxy *fe)
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{
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fe->fe_counters.cum_sess++;
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if (l->counters)
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l->counters->cum_sess++;
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update_freq_ctr(&fe->fe_sess_per_sec, 1);
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if (fe->fe_sess_per_sec.curr_ctr > fe->fe_counters.sps_max)
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fe->fe_counters.sps_max = fe->fe_sess_per_sec.curr_ctr;
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}
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/* increase the number of cumulated connections on the designated backend */
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static void inline proxy_inc_be_ctr(struct proxy *be)
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{
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be->be_counters.cum_conn++;
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update_freq_ctr(&be->be_sess_per_sec, 1);
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if (be->be_sess_per_sec.curr_ctr > be->be_counters.sps_max)
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be->be_counters.sps_max = be->be_sess_per_sec.curr_ctr;
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}
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/* increase the number of cumulated requests on the designated frontend */
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static void inline proxy_inc_fe_req_ctr(struct proxy *fe)
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{
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fe->fe_counters.p.http.cum_req++;
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update_freq_ctr(&fe->fe_req_per_sec, 1);
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if (fe->fe_req_per_sec.curr_ctr > fe->fe_counters.p.http.rps_max)
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fe->fe_counters.p.http.rps_max = fe->fe_req_per_sec.curr_ctr;
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}
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#endif /* _PROTO_PROXY_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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